This harness is used for 2015-2020 Mustang GTs that are running a Roush (201-2017) Supercharger or Whipple Supercharger and want to run an aftermarket tune. The IAT sensor included in the Roush and Whipple kits only works with the Roush and Whipple tunes. This sensor and harness are required for any vehicle running an aftermarket tune.
*Not for sale or street use in CA & CARB states. It has the potential to violate the Clean Air Act.